Negative Correlation Between Thermal and Electrical Conductivity in Epsilon‐Negative Nanocomposites
Abstract: Epsilon‐negative materials (ENMs) hold promise for the advancement of the next generation of electronic devices. Most epsilon‐negative materials strongly correlate with metal properties, which limits their applications in electronic packaging. Instead, achieving a negative permittivity in the insulating state is expected to show the decoupling of electrical and thermal conductivities, and experimental demonstration of this behavior is lacking. In this study, multi‐walled carbon nanotubes (MWCNTs)@polydopamine (PDA)‐silver/polyimide (PI) nanocomposites are engineered to achieve weakly negative permittivity, which is attributed to the localized plasma oscillations. The PDA layer and nano‐Ag are exploited to confine electrons with MWCNTs for improving energy transport while perturbing directional current, thereby realizing high thermal conductivity and low electrical conductivity. This work provides insights into the fundamental nature of heat and charge transport in epsilon‐negative systems.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Negative Correlation Between Thermal and Electrical Conductivity in Epsilon‐Negative Nanocomposites ; day:13 ; month:02 ; year:2024 ; extent:7
Advanced electronic materials ; (13.02.2024) (gesamt 7)
- Urheber
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Wei, Zaixin
Liu, Yao
Zhang, Yan
Aleksanteri, Kallioniemi Leevi
Qi, Xiangru
Zhang, Zidong
Wang, Zhongyang
Gao, Weibo
Fan, Runhua
- DOI
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10.1002/aelm.202300614
- URN
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urn:nbn:de:101:1-2024021414203591055864
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:29 MESZ
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Beteiligte
- Wei, Zaixin
- Liu, Yao
- Zhang, Yan
- Aleksanteri, Kallioniemi Leevi
- Qi, Xiangru
- Zhang, Zidong
- Wang, Zhongyang
- Gao, Weibo
- Fan, Runhua
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